Josh worries about everything. But he knows something is really wrong when his mum and dad begin to act strangely. His family is moving to Brighton and he must start a new school. He used to have his own Worrybot – a home-made cardboard robot which was supposed to eat up his worst fears if he wrote them down and posted them into its mouth. It did help a bit – but now Josh is terrified that his anxiety will return when he starts at his new school. He’s more than a bit surprised to discover that there’s a robot in his new class – a real-life learning robot which sits on the desk next to his and allows classmate Charlie to join lessons remotely. Soon Charlie becomes Josh’s best – perhaps his only – friend. Will Charlie’s friendship help Josh overcome his fears, or will it just give nasty Noah more reasons to make fun of him? And why won’t Charlie come to school anyway?